updates for 0.9.4

[debian/openrocket] / src / net / sf / openrocket / util / TextUtil.java

diff --git a/src/net/sf/openrocket/util/TextUtil.java b/src/net/sf/openrocket/util/TextUtil.java
index f554dc73ba0fbf4111928ca4fbc5280c2f97d670..c6a1bb835c6e99c09983e4f60d0347bd58864c9b 100644 (file)
--- a/src/net/sf/openrocket/util/TextUtil.java
+++ b/src/net/sf/openrocket/util/TextUtil.java
@@ -2,6 +2,28 @@ package net.sf.openrocket.util;
 
 
 public class TextUtil {
+       private static final char[] HEX = { 
+               '0','1','2','3','4','5','6','7',
+               '8','9','a','b','c','d','e','f' 
+       };
+
+       
+       /**
+        * Return the bytes formatted as a hexadecimal string.  The length of the
+        * string will be twice the number of bytes, with no spacing between the bytes
+        * and lowercase letters utilized.
+        * 
+        * @param bytes         the bytes to convert.
+        * @return                      the bytes in hexadecimal notation.
+        */
+       public static final String hexString(byte[] bytes) {
+               StringBuilder sb = new StringBuilder(bytes.length * 2);
+               for (byte b: bytes) {
+                       sb.append(HEX[(b >>> 4) & 0xF]);
+                       sb.append(HEX[b & 0xF]);
+               }
+               return sb.toString();
+       }
 
        /**
         * Return a string of the double value with suitable precision (5 digits).